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- 3) Draw the structures of the major organic product(s) for the following reactions. HI in CH₂Cl₂ 3 excess Cl₂ in H₂O H₂SO4 in H₂O (Two products) Br-Cl in THF 1) BH3 2) alkaline H₂O₂ OSO4 + HOOH(c) The following reaction shows the electrophilic addition reaction between an alkene compound with hydrogen chloride, HCI. Tindak balas berikut menunjukkan tindak balas penambahan elektrofilik antara sebatian alkena dengan hidrogen klorida, HCI. + HCI Major product Draw the mechanism for the formation of major product. Lukis mekanisma bagi pembentukan hasil utama berikut.Br Brz CH3 CH3 H3C CH2CI2 H3C Br Electrophilic addition of bromine, Br2; to alkenes yields a 1,2-dibromoalkane. The reaction proceeds through a cyclic intermediate known as a bromonium ion. The reaction occurs in an anhydrous solvent such as CH,Cl). In the second step of the reaction, bromide is the nucleophile and attacks at one of the carbons of the bromonium ion to yield the product. Due to steric clashes, the bromide ion always attacks the carbon from the opposite face of the bromonium ion so that a product with anti stereochemistry is formed. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions Br: :Br: .CH3 H3C H3C CH3 Br:
- CH3 CH3 Br- Br2 .CH3 CH2Cl2 CH3 H3C H3C Br Electrophilic addition of bromine, Brɔ, to alkenes yields a 1,2-dibromoalkane. The reaction proceeds through a cyclic intermediate known as a bromonium ion. The reaction occurs in an anhydrous solvent such as CH,Cl,. In the second step of the reaction, bromide is the nucleophile and attacks at one of the carbons of the bromonium ion to yield the product. Due to steric clashes, the bromide ion always attacks the carbon from the opposite face of the bromonium ion so that a product with anti stereochemistry is formed. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions CH3 CH3 CH3 CH3 H3C H3C :Br: :Br:(c) The following reaction shows the electrophillc addition reaction between an alkene compound with hydrogen chloride, HCI. Tindak balas berikut menunjukkan tindak balas penambahan elektrofilik antara sebatian alkena dengan hidrogen klorida, HCI. HCI Major product Draw the mechanism for the formation of major product. Lukis mekanisma bagi pembentukan hasil utama berikut.Give one example of elimination reaction (E2) type. Show the reactants materials and the product. Draw the reaction mechanism?
- OH NaOH H3C CH3 H3C CH3 Alkyl halides undergo nucleophilic substitution and elimination reactions. When the kinetics of the reaction are measured, if the rate of the reaction is found to be dependent only upon the concentration of the alkyl halide the reaction is first order. The substitution reaction is thus termed Sy1, and the elimination reaction is termed E1. These reactions are unimolecular and occur in two steps. The first step is rate-limiting and involves the loss of the leaving group to form a carbocation. In the second, fast, step the nucleophile adds to the carbocation in the SN1 reaction or elimination occurs to give an alkene in the E1 reaction. Because the carbocation is planar, the nucleophile can add to either face and therefore racemization is usually observed although solvent effects can influence this somewhat. E1 elimination follows Zaitsev's rule and typically yields the most substituted alkene as the major product. Conditions which favor the Sy1/E1 pathway include…Give a mechanism that accounts for the organic products of this reaction. Your mechanism must include a transition state that accounts for the stereochemistry of the product and/or reactant. Redraw the reagents as needed. CI OH NaOH, DMSO + NaClmethanol + CH3OH Suppose you were told that the above reaction was a substitution reaction but you were not told the mechanism. Evaluate the following categories to determine the reaction mechanism and then draw the structure of the major organic product. Type of alkyl halide: Type of nucleophile: Solvent: Is the product racemic?
- Provide the structure(s) of the expected major organic product of the reaction shown. 1) Disiamylborane 2) H₂O₂, NaOH OI O II ||| O IV OV CH3CH₂C(CH3)2C=CH OH OH xx xo IVProvide the curved-arrow mechanism to account for the following nucleophilic addition reaction. H20 EN NaOH NH2Provide the reagent(s) and the reaction mechanism of the following reaction H₂N